bfca36c772
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56 lines
2.2 KiB
Bash
Executable File
56 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
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set -x
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fi
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set -eu
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set -o pipefail
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if [[ $DISTRO_NAME =~ (centos|fedora) ]]; then
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# GENERAL WARNING : mixing packaged python libraries with
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# pip-installed versions always creates issues. Upstream
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# openstack-infra uses this a lot (especially devstack) but be
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# warned: here be dragons :)
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# Firstly we want to install the system packages. Otherwise later
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# on somebody does a "yum install python-virtualenv" and goes and
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# overwrites the pip installed version with the packaged version,
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# leading to all sorts of weird version issues.
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${YUM:-yum} install -y python-virtualenv python-pip python-setuptools
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# install pip; this overwrites packaged pip
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python /tmp/get-pip.py
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# pip and setuptools are closely related; we want to ensure the
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# latest for sanity. Because distro packages don't include enough
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# info in the egg for pip to be certain it has fully uninstalled
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# the old package, for safety we clear it out by hand (this seems
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# to have been a problem with very old to new updates,
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# e.g. centos6 to current-era, but less so for smaller jumps).
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# There is a bit of chicken-and-egg problem with pip in that it
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# requires setuptools for some operations, such as wheel creation.
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# But just installing setuptools shouldn't require setuptools
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# itself, so we are safe for this small section.
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rm -rf /usr/lib/python2.7/site-packages/setuptools*
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pip install -U setuptools
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# now install latest virtualenv. it vendors stuff it needs so
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# doesn't have issues with other system packages.
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pip install -U virtualenv
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# Add this to exclude so that we don't install a later package
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# over it if it updates. Note that fedora-minimal, bootstrapped
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# via yum, can have an old yum.conf around, so look for dnf first.
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if [[ -f /etc/dnf/dnf.conf ]]; then
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conf=/etc/dnf/dnf.conf
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elif [[ -f /etc/yum.conf ]]; then
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conf=/etc/yum.conf
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else
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die "No conf to modify?"
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fi
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echo "exclude=python-virtualenv,python-pip,python-setuptools" >> ${conf}
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else
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python /tmp/get-pip.py
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pip install virtualenv
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fi
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